The population of a town was 6000 in 2010. The population grows at a rate of 6.6% annually. (a) Use the exponential growth model to write an equation that estimates the population t years after 2010. (a) Estimate the population of the town in 2023. Show your work.

Respuesta :

Answer:

Part a) [tex]y=6,000(1.066^x)[/tex]

Part b) [tex]13,772\ people[/tex]

Step-by-step explanation:

Part a) Use the exponential growth model to write an equation that estimates the population t years after 2010

we have a exponential function of the form

[tex]y=a(b^x)[/tex]

where

x ---> the number of years since 2010

y ---> the population of a town

a is the initial value or y-intercept

b is the base of the exponential function

r is the rate of change

b=(1+r)

In this problem we have

[tex]a=6,000\ people[/tex]

[tex]r=6.6\%=6.6/100=0.066[/tex]

[tex]b=1+r=1+0.066=1.066[/tex]

substitute

[tex]y=6,000(1.066^x)[/tex]

Part b) Estimate the population of the town in 2023.

we know that

2023-2010=13 years

so

For x=13 years

substitute in the exponential equation and solve for y

[tex]y=6,000(1.066^13)=13,772\ people[/tex]